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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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23rd Apr 2019, 2:40 pm | #1 |
Hexode
Join Date: Jun 2013
Location: Norwich, Norfolk, UK.
Posts: 281
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Panasonic NP-VP33 Diode ID
I have a Panasonic NP-VP33 which is completely dead no lights nothing,upon opening this i noticed a diode which to my opinion has over heated.
Does any have a diagram for these so i can identify these components please Many thanks Ian
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Now where did I put that part again!!! |
23rd Apr 2019, 4:21 pm | #2 |
Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,987
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Re: Panasonic NP-VP33 Diode ID
Looks like there could be a startup electrolytic to the left of the transformer, this is often the cause of no start of the psu.
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Stephen _________"It`s only an old telly" ___ |
23rd Apr 2019, 5:17 pm | #3 |
Hexode
Join Date: Jun 2013
Location: Norwich, Norfolk, UK.
Posts: 281
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Re: Panasonic NP-VP33 Diode ID
I missed that, That capacitor does look a bit suss, Thanks
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Now where did I put that part again!!! |
23rd Apr 2019, 5:22 pm | #4 |
Dekatron
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 8,923
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Re: Panasonic NP-VP33 Diode ID
Yes,I forgot always the 1uF start up cap.
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24th Apr 2019, 3:56 pm | #5 |
Heptode
Join Date: Mar 2015
Location: Lefkada, Greece
Posts: 969
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Re: Panasonic NP-VP33 Diode ID
Did you measure the voltages of the output?
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24th Apr 2019, 4:13 pm | #6 |
Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,987
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Re: Panasonic NP-VP33 Diode ID
How could this be done ?
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Stephen _________"It`s only an old telly" ___ |
24th Apr 2019, 4:47 pm | #7 |
Dekatron
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 8,923
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Re: Panasonic NP-VP33 Diode ID
You can sometimes get certain voltages on a dead set,though I do not think so if that 1uF is duff.
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